Results 21 to 30 of about 696,781 (263)

Constitutive Modeling of Normally and Over-Consolidated Clay with a High-Order Yield Function

open access: yesMathematics, 2022
In this paper, a simple sub-loading yield surface model for both normally consolidated and over-consolidated clay is proposed with emphasis on the effect of the yield surface shape.
Chen-Xi Tong, Hong-Wei Liu, Hai-Chao Li
doaj   +1 more source

Closed system of coupling effects in generalized thermo-elastoplasticity

open access: yesInternational Journal of Applied Mechanics and Engineering, 2016
In this paper, the field equations of the generalized coupled thermoplasticity theory are derived using the postulates of classical thermodynamics of irreversible processses. Using the Legendre transformations two new thermodynamics potentials P and S
Z. Śloderbach
doaj   +1 more source

Effect of the yield surface evolution on the earing defect prediction

open access: yesRevista de Metalurgia, 2023
Although the prediction of earing in the cup drawing process is considerably related to the yield surface shape, the yield surface evolution is also essential for the final ear form.
Toros A. Akşen, Mehmet Firat
doaj   +1 more source

Investigating the Effect of Electrical Discharge Process Input Parameters on Mechanical Properties of Aluminum Surface [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2021
One of the important parameters in electrical discharge machining is the presence of micro cracks on the workpiece surface (recast layer). Therefore, the aim of this study was to investigate the possibility of increasing the mechanical properties of ...
Hadi Eivazi bagheri   +3 more
doaj   +1 more source

A Graphical Approach to Yield and Boundary Surfaces of Selected Hypoplastic Constitutive Equations

open access: yesArchives of Civil Engineering, 2011
W artykule przedstawiono sposób wyznaczania powierzchni płyniecia oraz powierzchni granicznej dla przykładowych równan konstytutywnych w ramach teorii hypoplastycznosci zaproponowanych przez Wu, Gudehus’a oraz Bauer’a.
Sikora Z., Ciesla P.
doaj   +1 more source

Experimental and Theoretical Performance Evaluation of Basin Solar Still with Lid Afloat in Egypt Conditions

open access: yesCommunications, 2022
This paper presents experimental and theoretical work, analyzing the performance of single slope solar still with and without a floating lid, conducted in Cairo, Egypt.
Amr Mesalem   +3 more
doaj   +1 more source

An adapted yield criterion for the evolution of subsequent yield surfaces

open access: yesJournal of Physics: Conference Series, 2017
In numerical analysis of sheet metal forming processes, the anisotropic material behaviour is often modelled with isotropic work hardening and an average Lankford coefficient. In contrast, experimental observations show an evolution of the Lankford coefficients, which can be associated with a yield surface change due to kinematic and distortional ...
N. Küsters, A. Brosius
openaire   +1 more source

Elastoplastic dilatancy relations of unsaturated clayey sand

open access: yesYantu gongcheng xuebao, 2018
The modified Lade model and Barcelona unsaturated elastoplastic model are used to describe the stress and strain relationship of unsaturated clayey sand, The tests on three types of stress paths tests are conducted.
ZHU Qing-qing 1, 2, MIAO Qiang-qiang 3, CHEN Zheng-han 4, YAO Zhi-hua 5, ZHANG Jun-hao 4
doaj   +1 more source

Applications of Burzynski failure criteria. Part I. Isotropic materials with asymmetry of elastic range

open access: yesEngineering Transactions, 2014
The main idea of energy-based hypothesis of material effort proposed by Burzynski is briefly presented and the resulting failure criteria are discussed.
T. FRĄŚ   +3 more
doaj   +1 more source

Description of the Yield State of Bioplastics on Examples of Starch-Based Plastics and PLA/PBAT Blends

open access: yesEngineering Transactions, 2014
The present work concerns the description of the yield state of biodegradable materials. As examples, biodegradable polymers are chosen – cornpole CRP-M2, starch fatty acid ester, and PLA/PBAT, poly(lactic acid) (PLA) blended with poly(butylene adipate ...
Teresa FRAS   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy